mercurialgrabber | b329f57c93e7b566651185a55962f0ec061b723be4535bc8cafc637ca4bff86b

General

Target

Synapse_X.exe
Size

306KB
MD5

4b10970bc9f2471119555eed253b116b
SHA1

60598f7dbacabea6d13507023631edc32c21e305
SHA256

b329f57c93e7b566651185a55962f0ec061b723be4535bc8cafc637ca4bff86b
SHA512

eed04da56031f93557c3469c5ccd2732512d78c8b5234b15277b7c2bf12e4f324ec3e41a70458aa61b85641cfb4757f128cc0896f2304f9b4e944fb66e672947

Score

10^/10

mercurialgrabber evasion spyware stealer

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/938829853707358228/GQ_fqwKcxJ8YNvJz6lIzbc99R2g0jdMT2WXyMUJx0ho6uumX8O1iBN9YC5VR8cJFbaNk

Signatures

Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
stealer mercurialgrabber
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

Synapse_X.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Synapse_X.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

9 ip-api.com

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Synapse_X.exe

flow	ioc
9	ip-api.com

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Synapse_X.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Synapse_X.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Synapse_X.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

976 1924 WerFault.exe Synapse_X.exe
Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

Synapse_X.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S Synapse_X.exe

pid	pid_target	process	target process
976	1924	WerFault.exe	Synapse_X.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	Synapse_X.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Synapse_X.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	Synapse_X.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Synapse_X.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

Synapse_X.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	Synapse_X.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	Synapse_X.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	Synapse_X.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	Synapse_X.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

WerFault.exe

pid process

976 WerFault.exe
976 WerFault.exe
976 WerFault.exe
976 WerFault.exe
976 WerFault.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Synapse_X.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 1924 Synapse_X.exe
Token: SeDebugPrivilege 976 WerFault.exe

pid	process
976	WerFault.exe
976	WerFault.exe
976	WerFault.exe
976	WerFault.exe
976	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1924	Synapse_X.exe
Token: SeDebugPrivilege	976	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Synapse_X.exe

description	pid	process	target process
PID 1924 wrote to memory of 976	1924	Synapse_X.exe	WerFault.exe
PID 1924 wrote to memory of 976	1924	Synapse_X.exe	WerFault.exe
PID 1924 wrote to memory of 976	1924	Synapse_X.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Synapse_X.exe
"C:\Users\Admin\AppData\Local\Temp\Synapse_X.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1924 -s 1920
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

5

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/976-57-0x000007FEFC261000-0x000007FEFC263000-memory.dmp

Filesize
8KB

Download
memory/976-60-0x0000000002130000-0x0000000002131000-memory.dmp

Filesize
4KB

Download
memory/1924-54-0x00000000013C0000-0x0000000001412000-memory.dmp

Filesize
328KB

Download
memory/1924-55-0x000007FEF5900000-0x000007FEF62EC000-memory.dmp

Filesize
9.9MB

Download
memory/1924-56-0x0000000000CE0000-0x00000000012F0000-memory.dmp

Filesize
6.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads